7 signs you're being conned

Con artists are a crafty group of people who know exactly how to deceive and control their victims, but their methods are as obvious as a slap in the face if you know what to look for.

In his book "The Gift of Fear," Gavin de Becker, who is a leading expert on spotting criminal intent, introduces seven telltale signs that many con artists and criminals will use when they approach you. Here's what to look for: